Railway brake arrangement



June 27, 1950 E. J. slMANEK 2,512,687

RAILWAY BRAKE ARRNGEMENT @afg 2 dn/caza@ Jlllne 27, 1950 E J, SlMANEK2,512,687

RAILWAY BRAKE ARRANGEMENT Filed April 2, 1947 `3 shets-sheet 2 June 27,1950 E. J. SIMANEK RAILWAY BRAKE ARRANGEMENT 3 Sheets-Sheet 3 FiledApril 2, 1947 r 17 11 111111111 /u/v Patented June 27, 1950 UNITEDSTATES OFFICE RAILlNAY BRAKE ARRANGEMENT Application April 2, 1947,Serial No. 738,897

(Cl. 18S-46) 12 Claims.

My invention relates to railway brake equipment and more particularly toa braking mechanism for a six-wheel truck.

An object of the invention is to devise a brake mechanism especiallyadapted fora truck such as described wherein a unified structure ofbrake rigging is afforded each side of the truck, each brake riggingstructure being actuated by a plurality of power cylinders connected intandem and carried on the adjacent ends of the transverse bolstersoutboardly of said truck.

Another object oi the invention is to devise a compact brake riggingsystem which is of simple design and eicient in service and in which thepower cylinders are so disposed as to be readily accessible for anypurpose desired.

A further object of the invention is to devise a brake arrangement for acar truck wherein the cylinders are carried on the ends of thetransverse bolsters of the car truck outboardly of said truck, thecylinders 4on each side of the truck being connected in tandem forsimultaneous operation so as to develop the power required for eiectingproper brake application.

These and other objects of the invention will f be apparent from thespecification .and the drawings wherein parts shown in certain of theviews are omitted 'where ,betterl shown in others ior purposes ofclarity.

In the drawings:

Figures 1 and 1A are top plan views at opposite sides respectively ofthe transverse center line of a truck structure embodying theinvention', only one half of the structure being shown inasmuch as it issymmetrical about its longitudinal center line.

Figures 2 and 2A are side elevations of the truck structure shown inFigures 1 and 1A.

Figure 3 is an end elevation of said structure taken'from the left, asseen in Figures 1A and 2A.

Figure 4 is a sectional view of the structure taken in the transversevertical plane substantially as indicated by line 4--4 of Figure 1A withthe cylinder and mounting bracket therefor removed.

Figure 5 is a side elevation of one of the cylinder mounting brackets.

Describing the structure in further detail, the car truck comprises, ateach side thereof, oppositely arranged spaced side frames 2 and 4(Figure 1A) connected at their adjacent ends in a well known manner bymeans of equalizers (not shown) affording the usual connection forjournal boxes (not shown)l connected to the intermediate wheel and axleassembly 6.

The remote ends of the frames 2 and y4 are 2 formed with pedestals 8, 8and I0, Ill respectively for association with journal box means (notshown) to which are journaled respective wheel and axle assemblies I2.and I4 at the opposite ends of the truck.

At opposite sides of the transverse center line of the truck arepositioned transverse bolsters I6 and I8, the bolster I6 beingassociated with the frames 2 and spring-supported therefrom as bysprings 20 diagrammatically illustrated in Figure 4, while the bolsterI8 is spring-supported from the frames 4 in a similar manner.

On the transverse bolsters is seated a center bolster 2B having a centerbearing 22 at its top for supporting the body of the vehicle (notshown), said center bolster also having at each end thereof a sidebearing table 23 affording a support for a side bearing (not shown).

As is well known to those skilled in the art, the transverse bolstersand the center bolster may .be formed as an integral structure.

It will be observed that the ends of respective bolsters I6 and I8project outboardly of the side frames in a manner as best seen inFigures l, 1A and 4.

On each end of the transverse bolster I8 is secured a bracket 24carrying at one end a power cylinder 25, said bracket being formed atits other end with a leg 28 extending above said cylinder, said legbeing bifurcated at its end as at 3S dening a diagonal slot or fulcrumjaw into which projects the upper end of a diagonally disposed cylinderlever 32 pivotally secured at its upper end to said leg as at 34. Thelower end ofthe cylinder lever 32 is pivoted as at 36 to a piston rod 38of said cylinder 26. The bracket 24 is shown in detail in Figure 5. Asupport plate 39 seats -against the inbcard side of the lever 32 and isxed to the bracket 24.

' The cylinder lever 32 is pivoted intermediate its ends, as at 40, toone' end of a pull rod 42, the other end of said rod being pivoted to acylinder lever 44 as at 48 intermediate the ends thereof. The upper endof the cylinder lever 44 is pivotally secured as at 50 toy a leg 52 of abracket 56 iixed to the end of the transverse bolster IS. The bracket 56is of a form substantially identical with that of the afore-mentionedbracket 24 and mounts below the upper level of the leg 52 thereof apower 'cylinder 58 comprising a piston with a rod 68 (Figure 1A) pivotedas at 62 to the lower end ofthe cylinder lever 44. The-cylinder lever 44seats on its inboard sideagainst a support plate 59 fixed to the bracket56.

A pull rod '54 is pivoted at one end thereof to the cylinder lever 44 atthe point 48, and the other end of the pull rod is pivotally connectedas at 66 (Figure 1A) to the outboard end of a horizontal dead lever 68.The lever SS extends through a, fulcrum jaw formed on the end of theside frame 2 and is pivoted intermediate its ends as at 12 to said jawiii.

The inboard end of the dead lever 68 is pivotally connected as at 14 toone end of a pull rod 1E which in turn in pivote'd at its other end asat 18 to the upper end of a live truck lever 80 positioned adjacent oneside of the .end Wheel and axle assembly l2. The lower end of the livelever 80 is fulcrumed as at 32 to a ulcrum 84 on `a brake beam 86(Figure 3). comprises at each end thereof a trunnion 80 which ispivotally connected to the lower end of a brake hanger S0, the upper endof said brake hanger 90 being pivotlally suspended as at V52 (Figure 3)from an inturned end portion 04 of the side frame 2. The hanger 90 at apoint intermediate its ends, as at 96, plvotally carries a brake head 98(Figure 2A) supporting abrakeshoe |00 for association with the peripheryof the adjacent wheel and axle assembly i2. The brake head is associatedwith a balancing device 102 of conventional design.

The lever 80 extends through a slot in a pull rod |04 and is affordedintermediate its ends an adjustable pivotal connection to said rod as at|46. The rod |04 extends at one end through an aperture |08 in theinturned end portion S4 and is slidably supported by said end portion asat H0 (Figures 2A and 3). The inturned end portion 94 also carries asafety loop ||-2 passing under the brake beam 86. 'The other .end of thepull rod |04 passes over the axle of the adjacent wheel and axleassembly I2 and is pivoted to a live lever |4 intermediate its ends asat H6, the lower end of the brake lever ||4 being 'pivotally connectedt0 a fulcrum IIB .on a brake beam |20 carrying at each end thereof abrake head |22 with a brake shoe |24 for braking engagement with theadjacent side o1' the wheel and axle as! sembly |2. To the brake head|22 is pivoted as at |26 the lower end of a hanger |28,`the upper end ofsaid hanger being pivoted to the frame 2 as at |30.

The upper end oi the brake lever |4 is pivoted as at |32 to one end of apull rod |34, said pull rod passing over and being guidably supported bya carrier |36 (Figures 1A and 4) xed to the side frame 2 and projectinginboardly therefrom. The other end of the pull rod |34 is pivotallyconnected as at |38 to the upper end of a live trucklever |40 disposedadjacent one side of the intermediate wheel and axle assembly 6. Thelower end of the truck lever |40 is pivoted as at |42 to a fulcrum |44on a brake beam |46 carrying at eachend thereof a brake head |48 with abrake shoe |50. The brake head |48 is pivotally secured as at |52 to thelower end of a brake hanger |54, the upper end of said brake hangerbeing iulcrume'd to -the frame as at |56.

The truck lever |40 is pivoted intermediate its ends as at |58 to oneend of a pull rod |60, said pull rod passing over the axle of theadjacent wheel and axle assembly 6 and at its opposite end' beingpivoted as at |62 to a live truck lever |64 intermediate the endsthereof. The lower end of the live truck lever |64 is pivotally secured"to a fulcrum |66 carried by a brake beam |10 on each end of which ismounted a brake head |12A with a brake shoe |14. To the brake head' |12as at |16 is pivoted the lower end of a hanger The brake beam 86 -f |18,the upper end of said hanger being pivoted as at to the truck frame 6.

The live truck lever |64 is pivoted at its upper end as at |82 to oneend of a pull rod |84, said pull rod |84 passing over a carrier |86 andguidably supported thereby, the carrier |86 being iixed to andprojecting inboardly therefrom. The other end of the pull rod |84 ispivoted as at |00 to the upper end of alive truck lever |90 positionedadjacent one side of the wheel and axle assembly i4. The lower end ofthe live truck lever |50 is fulcrumed as at |92 to a fulcrum |94 on abrake beam |96 carrying at each end a brake head |96 lwith a brake shoe200. To the vbrake head |98, as at 202, is pivoted the lower end of ahanger 204, the upper end of said hanger being pivoted to the frame 4 asat 206.

The lever |90 is pivoted intermediate its ends, as at 258, t0 one end ofa pull rod 2|0 which passes over the axle of the adjacent wheel andvaxle assembly |4, The opposite end of the pull rod 2|() is providedwith va slack adjuster .2|2, said slack adjuster aiording a fulcrum asat .214 for a dead truck lever 2|6 at a point intermediate its ends. Theupper end of the dead truck lever 216 is iulcrumed as at 2|8 to asupport member 220, intermediate its ends, said support member beingconnected at one end as at 222 to an extension 224 (Figure 1A) of thecenter bolster 20. The other end of the support member 220 is carried onand connected as at 226 to an inturned end :228 of :the `side frame 4.The Vlower end of the dead truck lever 2|6 yis fulcrumed as at 230 to afulcrum 232 on the brake beam 234, said brake beam beingformed at eachend with a trunnion 236 to which is Vpivoted the lower end of a hanger238, the upper end of said hanger being pivoted is at 240 to theinturned end 228 of the side frame On the hanger 238, intermediate itsends, as at 242 is plvoted a brake head 244 with balancing means 246 ofconventional form, said brakehead carrying abrake shoe 248 forassociation with the periphery of the wheel of the adjacent assembly 4.

In operation, to apply the brakes, the cylinders 26 and 58 are caused toactuate the levers 32 and 44, respectively, rotating the same in acounterclockwise direction (Figures`2` .and 2A), thus causing the rod 42to move to the right (Figures 2 and 2A). This movement in turn resultsin the rod 64 also moving to the right, rotating the dead lever 6s in aeounterclockwise direction (Figure l) about its fulcrum 12, causing theinboard end of the dead cylinder lever 68 to move to the left, pullingwith it in the same direction the pull rod 16 which in turn causes thelever 80 to pivot about its fulcrum |06 on the rod |04 in acounterclockwise direction (Figure 2) which urges the brake shoe |00against the periphery of the wheel and axle assembly |2. Simultaneously,the lever 80 moves the pull rod |04 to the left (Figure 2) causing thelever |'|4 to also be pulled in the same direction and thereby rotatedin a clockwise direction to apply the shoe |24. The lever |4, in movingtowards the left, pulls the rod |34 in the same direction which in turnpulls the 1ever |40 toward the left and at the same time rotates thelever |40 in a counterclockwise direction, applying the shoe |56 to theperiphery of the wheel of the assembly 6. Movement of the lever |40 tothe left causes similar movement of the rod |60 which in turn pulls thelever |04 to the left and causes the. same to rotate ina clockwisedirection, applying the brake shoe-|14 to the wheel and axle assembly 6.The movement of the lever |64 to the left imparts a similar movement tothe rod |84 which in turn causes the lever |90 to rotate in acounterclockwise direction and also move to the left, thus applying thebrake shoe 200 to the periphery of the wheel of the assembly l4.Actuation of the lever l9 moves the rod 2 l0 to the left which in turnrotates the lever 2 I6 in a clockwise direction, applying the brake shoe248 to the wheel of the assembly I4. Release of the power means willcause reversal of the movement heretofore described in applying thebrakes.

It is to be understood that I do not wish to be limited by the exactembodiment of the device shown which is merely by way of illustrationand not limitation as various and other forms of the device will, ofcourse, be apparent to those skilled in the art without departing fromthe spirit of the invention or the scope of the claims.

I claim:

l. In a brake arrangement for a six-wheel car truck, a truck frame,spaced supporting wheel and axle assemblies, brake means for said assemwblies including unied brake rigging dead-ended at one end of the truckand having a live end at the opposite end of the truck, a load-carryingstructure spring-supported from the frame and having portions protrudingoutwardly of the frame beyond the outboard side thereof, said portionsbeing spaced longitudinally of the truck, a power cylinder mounted oneach portion, said cylinders being arranged to operate in the samedirection longitudinally of the truck, a substantially vertical cylinderlever pivoted to each cylinder at its lower end and to the associatedportion at its upper end, a pull rod interconnecting said cylinderlevers, and an operative connection between one of said cylinder leversand the live end of said rigging.

2. In a brake arrangement, a truck framework including a side member,supporting wheel and axle assemblies, a pair of bolster members spacedlongitudinally of the truck and each having an end protruding outboardlyof said side member, a power cylinder mounted on each end, saidcylinders being arranged to operate in the same direction, an uprightcylinder lever associated with each cylinder and connected at its lowerend thereto and pivoted at its upper end to the associated member, meansinterconnecting the cylinder levers at points intermediate the endsthereof, a uniiied brake rigging operatively associated with saidassemblies and dead-ended at one end of the truck and having a live endat the other end of the truck, and an operative connection between oneof said cylinder levers and said live end of the rigging.

3. In a railway car truck, a side frame, a bolster structure comprisingspaced ends projecting through said frame, spring means between saidends and said frame for supporting said bolster structure, power meansmounted on each of said ends outboardly of said frame, each of saidpower means comprising a cylinder having a piston rod and a leverpivotally connected to said piston rod at one end and fulcrumed at itsother end to the associated bolster structure end, a link pivotallyinterconnecting said levers at points intermediate the ends thereof, anda brake-operating member operatively connected to said levers foractuation by all of said cylinders, said cylinders being arranged tooperate in unison in the same direction.

4. In a brake arrangement, a truck frame including a side member,supporting wheel and axle assemblies, a load-carrying structureprotrading through said side member at points spaced longitudinally ofsaid side member, a plurality of cylinders arranged in tandem andmounted on said structure outboardly of said side member, said cylindersoperating in the same direction toward one end of the truck, asubstantially vertical lever positioned adjacent each cylinder andpivoted at its upper'end to said structure and at its lower end to theadjacent cylinder, rigid means interconnecting the cylinder leversintermediate their ends, brake means for said as'v semblies, and meansconnecting one of said levers to said brake means at the point ofconnection of said one lever with said rigid means.

5. In a railway car truck, a framework including spaced side members, aload-carrying structure having ends protruding through said sidemembers, a plurality of cylinders arranged in tandem mounted on eachend, adjacent cylinders being arranged to operate in the same direction,means interconnecting adjacent cylinders comprising a lever adjacenteach cylinder connected at its lower end to the associated cylinderandpivoted at its upper end to said structure-means interconnectingadjacent levers intermediate their ends, and a unied brake system on theinboar'd side of each member operatively connected to one of theadjacent levers.

6. In a railway car truck, a framework including a side member, aload-carrying structure comprising a plurality of elements projectingtransversely through said side member, a power cylinder and a fulcrummember on the end of each element, said cylinders operating in the samedirection, a lever hung from each fulcrum member at a point above theassociated cylinder and connected to the associated cylinder at a pointbelow the fulcrum member, means disposed Y' above the cylinders at theoutboard side of said side member and connecting respective levers toeach other intermediate said first and secondmentioned points, and abrake-operating lever at one end of said truck connected to one of saidlevers at the point of connection of said means with said one lever.

7. In a railway car truck, a side frame, a bolster structure havingspaced elements projecting laterally through said frame andspring-supported therefrom, cylinders on said elements outboardly ofsaid frame, said cylinders operating in the same direction, a leverpivotally supported at one end from each element and operativelyconnected at its other end to the adjacent cylinder, and an operativeconnection between said levers and associated brake rigging.

8. In a brake arrangement, a truck framework, supporting wheel and axleassemblies, a loadvcarrying member, spaced cylinders carried on saidload-carrying member and operating in the same direction, brake meansfor said assemblies including brake rigging dead-ended at one eX-tremity of the truck and having a live end at the opposite extremity ofthe truck, and means including a system of interconnected leversconnecting said cylinders to each other and to said live end of therigging.

9. In a brake mechanism, the combination with a truck frame having sideand transverse members, wherein said transverse member projectsoutwardly of said side member, spaced brake levers fulcrumed to saidtransverse member outboardly of said side member, brake cylinderscarried by said transverse member and pivotally connected to respectivelevers, said cylinders operating in the same direction, a pull rodpassing over one of said cylinders and connecting said levers atVVpoints intermediate the ends thereof whereby thevsame are caused tooperate together, and an operative connection between one of said leversand'fassociated brake rigging.

'10. In a brake mechanism, the combination of a plurality of spacedbrake cylinders mounted on an associated bolster structure and havingpiston rods, brake levers operatively connected at their lower ends tothe piston rods of respective cylinders/each lever being fulcrnmed atits upper end to said bolster structure, a link extending between andfulcrumed at its opposite ends to the medial portions of said levers,and another link connected to the medial portion of one of said leversand to associated brake rigging, said levers being movable in unison inthe same direction by said power means.

1l. In a railway car truck, a side frame, a b01- ster structurecomprising a center piece and spaced transverse members, said membersextending through said frame, spring means supporting said members onsaid frame, power cylinders'xed to the ends of said members outboardlyof said frame, each cylinder having a piston rod, cylinder leverspivoted at one end to respective members, and at the other'endtorespective piston rods, and connected intermediate their ends to eachother, and power-transmitting means connecting said levers withassociated brake rigging, said power cylinders operating in the samedirection.

12. In a brake arrangement for a railway car truck comprising a truckframe, a bolster resiliently supported therefrom, spaced wheel and axleassemblies, brake means for said assemblies, power means for actuatingsaid brake means including spaced cylinders mounted on said bolster,levers pivoted at corresponding points to the bolster adjacent eachcylinder' and pivoted at other corresponding points thereto andoperatively connected at still other corresponding points to each otherand to said brake means.

EDWARD J. SIMANEK.

kREFIERENCES CITED The following 'references are of record in the fileof this patent:

UNITED STATES PATENTS Number Name Date 1,939,926 Schwentler Dec. 19,1933 2,149,496 Baselt Mar. 7, 1939 2,152,268. Moeller et al Mar. 28,1939 2,460,196 Simpson Jan. 25, 1949

